I saw this stuff on TV once. It's supposed to be good against traumas and stuff like that. But I also read that it's not really proven to work. If this stuff really worked it would be a lot better than to spend endless hours talking to a therapist about your fears which in the end might only make the fears worse by always bringing them up again.
https://www.ptsdforum.org/c/wiki/eye...-reprocessing/